EP1013979A2 - Hose, for example for supply of air - Google Patents

Hose, for example for supply of air Download PDF

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Publication number
EP1013979A2
EP1013979A2 EP99122642A EP99122642A EP1013979A2 EP 1013979 A2 EP1013979 A2 EP 1013979A2 EP 99122642 A EP99122642 A EP 99122642A EP 99122642 A EP99122642 A EP 99122642A EP 1013979 A2 EP1013979 A2 EP 1013979A2
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EP
European Patent Office
Prior art keywords
hose
blank
mandrel
charge air
silicone rubber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99122642A
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German (de)
French (fr)
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EP1013979B1 (en
EP1013979A3 (en
Inventor
Thilo Möller
Wolfgang Dannenberg
Thomas Grebe
Günter Röder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Muendener Gummiwerk GmbH
Original Assignee
Muendener Gummiwerk GmbH
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Filing date
Publication date
Priority claimed from DE19907325A external-priority patent/DE19907325C2/en
Application filed by Muendener Gummiwerk GmbH filed Critical Muendener Gummiwerk GmbH
Publication of EP1013979A2 publication Critical patent/EP1013979A2/en
Publication of EP1013979A3 publication Critical patent/EP1013979A3/en
Application granted granted Critical
Publication of EP1013979B1 publication Critical patent/EP1013979B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10314—Materials for intake systems
    • F02M35/10334—Foams; Fabrics; Porous media; Laminates; Ceramics; Coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1015—Air intakes; Induction systems characterised by the engine type
    • F02M35/10157—Supercharged engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L2011/047—Hoses, i.e. flexible pipes made of rubber or flexible plastics with a diffusion barrier layer

Definitions

  • the present invention relates to a hose, e.g. B. one Charge air hose with at least one fabric insert Print carrier, the print carrier being made of a vulcanizable material is surrounded, and the end of the hose has a circumferential groove owns.
  • the invention also relates to a method for producing a such hose.
  • Charge air hoses are known; Charge air hoses are e.g. B. at Motors with turbochargers related to the air to the intake module of the To run Motors. The air transported has considerable temperatures, which is due to the temperature of the turbocharger itself and on the other hand in the pressure increase of the charge air by the turbocharger. So Charge air hoses (EP 826 915) are known in particular, which consist of a AEM (acrylate-ethylene monomer) exist. However, such are out Hoses manufactured by AEM are only temperature-resistant up to about 160 ° C. Especially in the case of extremely sophisticated engines, the hoses have to Partly temperatures of much more than 220 ° C and also high Withstand pressures. Such temperatures and pressures are from AEM Manufactured charge air hoses have not grown.
  • AEM acrylate-ethylene monomer
  • the invention is therefore based on the object of a hose at the beginning provide mentioned type, which is pressure and high temperature resistant, is easy to manufacture, and a simple installation in the Motor assembly allowed.
  • the object is achieved in that the Fabric insert of the hose from a silicone-containing material, in particular silicone rubber or silicone rubber, coated on both sides, the hose having a pre-shaped sleeve at the end, wherein the sleeve has an embossing in the form of a circumferential groove.
  • this tool is in the form of a an elastomeric rubber-elastic ring for embossing such a circumferential groove on a silicone rubber hose, only after the vulcanization hardly detached from the silicone tube can be because it is with the silicone of the hose in the Crosslinking process of the silicone rubber through vulcanization connected.
  • silicone rubber material for embossing one Groove in the hose available. That means there is always that Danger that the outermost fabric layer becomes visible through the embossing, which has a negative impact on durability and tightness.
  • Has fabric layer aramid threads are provided.
  • Such a hose advantageously has a skin-like barrier layer, in particular made of fluororubber or fluoroplastic to the hose to make it diffusion-tight.
  • the use of a finished sleeve has another advantage, that is that labels such as item numbers, Material information, production date or assembly marks are not only subsequently - for example using the screen printing process - on the hose must be applied, but immediately during the preliminary vulcanization the sleeve can already be inserted into the same, which then in turn is pushed onto the tube blank.
  • the invention also relates to a method for producing a Hose, in particular a charge air hose; such a process is characterized in that a plate-shaped base body with a Print carrier from at least one fabric layer is provided, the Fabric layer on both sides of a silicone-containing material (silicone rubber) is encased, the plate-shaped base body to form a sleeve-shaped blank on a first mandrel, a so-called Auxiliary mandrel being rolled.
  • a plate-shaped base body with a Print carrier from at least one fabric layer is provided, the Fabric layer on both sides of a silicone-containing material (silicone rubber) is encased, the plate-shaped base body to form a sleeve-shaped blank on a first mandrel, a so-called Auxiliary mandrel being rolled.
  • the finished sleeve is advantageously made of silicone rubber, whereas the Blank made of silicone rubber. Then during the vulcanization Networking of the rubber to silicone rubber instead, taking the sleeve out Silicone rubber still has enough cross-linking points for a chemical Has connection with the silicone rubber of the tube blank. The connection between the sleeve and the Tube blank by bandaging the tube blank with the sleeve all in all.
  • the tarpaulin 1 made of silicone rubber with a inner carrier layer made of a fabric 2 as partially on a first Mandrel, the so-called auxiliary mandrel 20, rolled up blank 3.
  • auxiliary mandrel 20 rolled up blank 3.
  • the blank Before the actual vulcanization, the blank is applied accordingly molded second mandrel 10, then the sleeves 5 from Silicone rubber are pushed on, in order then on the second mandrel 10th deferred condition to be bandaged (Fig. 2).
  • the sleeves 5 show a groove-like circumferential impression 5a for receiving the Hose clamp in the installed state of such Charge air hose in the engine.
  • bandaging is a corresponding solid and also temperature-resistant tape over the entire length of the blank wrapped to form an intimate connection during vulcanization the coiled layers of the blank to effect each other and in addition, of course, an intimate connection of the sleeves 5 Silicone rubber with the tube blank made of silicone rubber. Through the Bandaging will also result in air bubbles present in the blank pressed out.
  • the bandage is removed and the tube blank is ready when it is pulled from the mandrel is.

Abstract

The hose has a fabric reinforcing layer(2) enclosed on both sides by a vulcanizable silicone rubber and the hose ends have a preformed socket with a circumferential groove for holding the hose clamp. An Independent claim is made for a method for producing the hose in which: a) a preform(3) is removed from a first mandrel(20) and pushed onto a second mandrel with a contour corresponding to that of the hose; b) elastomer sockets are attached to each end of the preform and the structure is pressure wrapped on the second mandrel and vulcanized.

Description

Die vorliegende Erfindung betrifft einen Schlauch, z. B. einen Ladeluftschlauch, mit einem mindestens eine Gewebeeinlage umfassenden Druckträger, wobei der Druckträger von einem vulkanisierbaren Material umgeben ist, und wobei der Schlauch endseitig eine umlaufende Nut besitzt. The present invention relates to a hose, e.g. B. one Charge air hose with at least one fabric insert Print carrier, the print carrier being made of a vulcanizable material is surrounded, and the end of the hose has a circumferential groove owns.

Gegenstand der Erfindung ist ebenfalls ein Verfahren zur Herstellung eines derartigen Schlauches.The invention also relates to a method for producing a such hose.

Ladeluftschläuche sind bekannt; Ladeluftschläuche werden z. B. bei Motoren mit Turboladern verwandt, um die Luft zum Ansaugemodul des Motors zu leiten. Die transportierte Luft weist erhebliche Temperaturen auf, was zum einen in der Temperatur des Turboladers selbst begründet ist und zum anderen in der Druckerhöhung der Ladeluft durch den Turbolader. So sind insbesondere Ladeluftschläuche (EP 826 915) bekannt, die aus einem AEM (Acrylat-Ethylen-Monomer) bestehen. Allerdings sind derartige aus AEM hergestellte Schläuche nur bis zu etwa 160°C temperaturdauerfest. Gerade bei extrem hochgezüchteten Motoren müssen die Schläuche zum Teil Temperaturen von wesentlich mehr als 220°C und auch hohen Drücken standhalten. Solchen Temperaturen und Drücken sind aus AEM hergestellte Ladeluftschläuche nicht gewachsen.Charge air hoses are known; Charge air hoses are e.g. B. at Motors with turbochargers related to the air to the intake module of the To run Motors. The air transported has considerable temperatures, which is due to the temperature of the turbocharger itself and on the other hand in the pressure increase of the charge air by the turbocharger. So Charge air hoses (EP 826 915) are known in particular, which consist of a AEM (acrylate-ethylene monomer) exist. However, such are out Hoses manufactured by AEM are only temperature-resistant up to about 160 ° C. Especially in the case of extremely sophisticated engines, the hoses have to Partly temperatures of much more than 220 ° C and also high Withstand pressures. Such temperatures and pressures are from AEM Manufactured charge air hoses have not grown.

Aus der DE 44 22 557 ergibt sich die Lehre, auf das Ende eines Schlauchrohlings, der innenseitig einen entsprechenden Dorn zur Formgebung aufweist, außenseitig eine Formhülse aufzusetzten, um Schlauchkrümmer mit einem genau maßhaltigen, glattflächigen Anschlussende mit vergleichsweise geringem Kostenaufwand herzustellen.DE 44 22 557 teaches the end of a Tube blank, which has a corresponding mandrel on the inside Forming has to put on the outside a molded sleeve to Hose elbow with a precisely dimensioned, smooth surface Manufacture connection end with comparatively low cost.

Aus dem Stand der Technik gemäß der DE 197 49 332 C1 ist bekannt, nutartige Einprägungen für Schlauchschellen durch Aufsetzen eines entsprechenden Werkzeuges aus einem Elastomermaterial während der Vulkanisation eines Schlauches aus einem Elastomer, z. B. AEM, zu erzeugen. Nachteilig hierbei ist jedoch die geringe Temperaturbeständigkeit eines solchen Schlauches, wie dies bereits ausgeführt wurde.It is known from the prior art according to DE 197 49 332 C1 groove-like impressions for hose clamps by attaching a corresponding tool made of an elastomer material during the Vulcanization of a hose made of an elastomer, e.g. B. AEM, too produce. The disadvantage here is the low temperature resistance of such a hose, as has already been stated.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Schlauch der eingangs genannten Art bereitzustellen, der druck- und hochtemperaturfest ist, einfach herstellbar ist, und der einen einfachen Einbau bei der Motormontage erlaubt.The invention is therefore based on the object of a hose at the beginning provide mentioned type, which is pressure and high temperature resistant, is easy to manufacture, and a simple installation in the Motor assembly allowed.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Gewebeeinlage des Schlauches von einem silikonhaltigen Material, insbesondere Silikonkautschuk bzw. Silikongummi, beidseitig ummantelt ist, wobei der Schlauch endseitig jeweils eine vorgeformte Muffe aufweist, wobei die Muffe eine Prägung in Form einer umlaufenden Nut aufweist.The object is achieved in that the Fabric insert of the hose from a silicone-containing material, in particular silicone rubber or silicone rubber, coated on both sides, the hose having a pre-shaped sleeve at the end, wherein the sleeve has an embossing in the form of a circumferential groove.

Durch die Verwendung von silikonhaltigem Material wird eine Temperaturfestigkeit von bis zu 250 ° C erreicht. Es ist bekannt, dass zur Befestigung der Ladeluftschläuche auf Rohrenden Schlauchschellen an den entsprechenden Stellen angeordnet werden. Wesentlich ist nun, dass derartige Schlauchschellen an einem vorbestimmten Ort auf dem Schlauch und auf dem Rohrende aufsitzen müssen, um eine optimale Verbindung zwischen Schlauch und Rohr herstellen zu können. Es ist nun - wie bereits zum Stand der Technik ausgeführt - bekannt, Einprägungen in Form von umlaufenden Nuten durch ein Werkzeug auf einem Elastomerschlauch anzubringen, wobei in den Nuten die Schlauchschellen einsitzen. Es hat sich allerdings herausgestellt, dass dieses Werkzeug in Form eines aus einem Elastomer bestehenden, gummielastischen Rings zur Einprägung einer derartigen umlaufenden Nut auf einem Silikonkautschukschlauch, nur schwerlich nach der Vulkanisation wieder vom Silikonschlauch gelöst werden kann, da es sich mit dem Silikon des Schlauches bei dem Vernetzungsvorgang des Silikonkautschuks durch die Vulkanisation verbunden hat. Darüber hinaus steht insbesondere bei Verwendung zweier Lagen aus einem textilen Gewebe als Druckträgerschicht nur noch eine sehr geringe Menge an Silikonkautschukmaterial zur Einprägung einer derartigen Nut in den Schlauch zur Verfügung. Das heißt, es besteht immer die Gefahr, dass die äußerste Gewebelage durch die Prägung sichtbar wird, was sich negativ auf die Haltbarkeit und Dichtigkeit auswirkt. Durch die Verwendung einer Muffe aus einem Silikongummi, die quasi nach Fertigstellung des Rohlings aus Silikonkautschuk auf den Rohling aufgestülpt wird, werden derartige Probleme vermieden. Wird nämlich eine vorgeformte Muffe aus Silikongummi anstelle des Werkzeuges aus Elastomer verwendet, dann stellt sich der oben beschriebene Nachteil des Festhaftens auf dem Silikonkautschuk-Schlauchrohling als Vorteil insofern dar, als die Muffe auf dem Rohling bzw. auf dem Schlauch durch "Verkleben" fest aufsitzt, und insofern auch dort verbleiben kann. Dies funktioniert selbst dann, wenn die Muffe aus fertig vernetztem Silikonkautschuk, also Silikongummi besteht, weil die Muffe aus Silikongummi noch genügend Vernetzungspunkte zur Herstellung einer chemischen Verbindung mit dem Silikonkautschuk des Schlauchrohlings bei der nachfolgnden Vulkanisation aufweist. Die Verwendung einer Muffe aus Silikongummi, also vernetztem Silikonkautschuk, hat den Vorteil, dass diese sich in ihren Abmessungen bei der Vulkanisation nicht mehr ändert.Through the use of silicone-containing material, a Temperature resistance of up to 250 ° C reached. It is known that for Fastening the charge air hoses on pipe ends to hose clamps appropriate positions are arranged. It is now essential that such hose clamps at a predetermined location on the hose and have to sit on the pipe end for an optimal connection to be able to produce between hose and pipe. It is now - as already executed to the prior art - known, impressions in the form of circumferential grooves by a tool on an elastomer hose to attach, with the hose clamps sitting in the grooves. It has However, it turned out that this tool is in the form of a an elastomeric rubber-elastic ring for embossing such a circumferential groove on a silicone rubber hose, only after the vulcanization hardly detached from the silicone tube can be because it is with the silicone of the hose in the Crosslinking process of the silicone rubber through vulcanization connected. In addition, especially when using two Layers of a textile fabric as a print carrier layer are only one very small amount of silicone rubber material for embossing one Groove in the hose available. That means there is always that Danger that the outermost fabric layer becomes visible through the embossing, which has a negative impact on durability and tightness. Through the Using a sleeve made of a silicone rubber, the quasi after Completion of the blank made of silicone rubber on the blank such problems are avoided. Because it becomes one preformed sleeve made of silicone rubber instead of the tool Used elastomer, then the disadvantage of So sticking to the silicone rubber tube blank as an advantage as the sleeve on the blank or on the hose through "Gluing" is firmly seated, and so it can remain there. This works even if the sleeve is made of fully networked Silicone rubber, i.e. silicone rubber, is made because of the sleeve Silicone rubber still enough networking points to make one chemical connection with the silicone rubber of the tube blank of the subsequent vulcanization. The use of a sleeve Silicone rubber, i.e. cross-linked silicone rubber, has the advantage that this their dimensions no longer change during vulcanization.

Durch die Verwendung eines Gewebes anstelle eines Gestrickes, kann auch eine Druckfestigkeit erreicht werden, die wesentlich über der liegt, die mit den bislang bekannten Schläuchen erzielbar ist. Dies rührt insbesondere auch daher, dass bei einem Druckträger aus Gewebe eine höhere Fadendichte verwirklicht werden kann, als dies bei einem Gestrick der Fall ist.By using a fabric instead of a knitted fabric, too a compressive strength can be achieved which is significantly higher than that with the hoses known so far can be achieved. This is particularly important also because that with a print carrier made of fabric, a higher thread density can be realized than is the case with a knitted fabric.

Zur weiteren Erhöhung der Druckfestigkeit ist vorgesehen, dass die Gewebelage Aramid-Fäden aufweist.To further increase the compressive strength, it is provided that the Has fabric layer aramid threads.

Vorteilhaft besitzt ein derartiger Schlauch eine hautartige Sperrschicht, insbesondere aus Fluorkautschuk oder Fluorkunststoff, um den Schlauch diffusionsdicht zu gestalten.Such a hose advantageously has a skin-like barrier layer, in particular made of fluororubber or fluoroplastic to the hose to make it diffusion-tight.

Die Verwendung einer fertigen Muffe hat noch einen weiteren Vorteil, der darin besteht, dass Kennzeichnungen wie zum Beispiel Artikelnummern, Materialangaben, Fertigungsdatum oder auch Montagemarkierungen nicht erst nachträglich - beispielsweise im Siebdruckverfahren - auf den Schlauch aufgebracht werden müssen, sondern unmittelbar bei der Vorvulkanisation der Muffe in dieselbige bereits eingebracht werden können, die dann wiederum auf den Schlauchrohling aufgeschoben wird.The use of a finished sleeve has another advantage, that is that labels such as item numbers, Material information, production date or assembly marks are not only subsequently - for example using the screen printing process - on the hose must be applied, but immediately during the preliminary vulcanization the sleeve can already be inserted into the same, which then in turn is pushed onto the tube blank.

Gegenstand der Erfindung ist ebenfalls ein Verfahren zur Herstellung eines Schlauches, insbesondere eines Ladeluftschlauches; ein solches Verfahren zeichnet sich dadurch aus, dass ein plattenförmiger Grundkörper mit einem Druckträger aus mindestens einer Gewebälage vorgesehen ist, wobei die Gewebelage beidseitig von einem silikonhaltigen Material (Silikonkautschuk) ummantelt ist, wobei der plattenförmige Grundkörper zur Bildung eines hülsenförmigen Rohlings auf einen ersten Dorn, einen sogenannen Hilfsdorn, gerollt wird.The invention also relates to a method for producing a Hose, in particular a charge air hose; such a process is characterized in that a plate-shaped base body with a Print carrier from at least one fabric layer is provided, the Fabric layer on both sides of a silicone-containing material (silicone rubber) is encased, the plate-shaped base body to form a sleeve-shaped blank on a first mandrel, a so-called Auxiliary mandrel being rolled.

Aus der DE 96 31 01 ist bekannt, einen sogenannten Schichtkörper um einen Metalldorn zu wickeln, der gegebenenfalls mit Seifenstein bestäubt werden kann, wobei die ungehärtete Silikonkautschuk-Schicht am Dorn anliegt. Das hierbei erhaltene Rohr oder der Schlauch wird dann vulkanisiert bzw. gehärtet. Aus dieser Literaturstelle ist allerdings nicht bekannt, den Rohling, gegebenenfalls nach einer Vorvulkanisation, von dem ersten Dorn zu entfernen, diesen Rohling auf einen der Kontur des Schlauches entsprechenden zweiten Dorn zu schieben, endseitig auf den Rohling jeweils eine vorgefertigte Muffe aus Elastomermaterial aufzubringen, den Rohling auf dem zweiten Dorn zu bandagieren und daraufhin zu vulkanisieren. Durch die Bandagierung wird erreicht, dass die Muffe eine innige Verbindung mit dem Schlauchrohling während der Vulkanisation erhält. Nach der Vulkanisation wird die Bandage abgenommen und der Schlauch kann seinem bestimmungsgemäßen Gebrauch zugeführt werden.DE 96 31 01 discloses a so-called laminated body to wind a metal mandrel that may be dusted with soap stone can be, with the uncured silicone rubber layer on the mandrel is present. The pipe or hose obtained is then vulcanized or hardened. However, it is not known from this reference that Blank, possibly after a preliminary vulcanization, from the first mandrel to remove this blank onto one of the contour of the hose to push the corresponding second mandrel on the end of the blank each apply a prefabricated sleeve made of elastomer material, the Band the blank on the second mandrel and then to vulcanize. The bandaging ensures that the sleeve is a intimate connection with the tube blank during vulcanization receives. After vulcanization, the bandage is removed and the Hose can be used for its intended purpose.

Vorteilhaft besteht die fertige Muffe aus Silikongummi, hingegen der Rohling aus Silikonkautschuk. Während der Vulkanisation findet dann die Vernetzung des Kautsschuks zu Silikongummi statt, wobei die Muffe aus Silikongummi noch genügend Vernetzungspunkte für eine chemische Verbindung mit dem Silikonkautschuk des Schlauchrohlings aufweist. Gefördert wird die Verbindung zwischen der Muffe und dem Schlauchrohling durch das Bandagieren des Schlauchrohlings mit der Muffe insgesamt.The finished sleeve is advantageously made of silicone rubber, whereas the Blank made of silicone rubber. Then during the vulcanization Networking of the rubber to silicone rubber instead, taking the sleeve out Silicone rubber still has enough cross-linking points for a chemical Has connection with the silicone rubber of the tube blank. The connection between the sleeve and the Tube blank by bandaging the tube blank with the sleeve all in all.

Durch die Verwendung eines plattenförmigen Grundkörpers mit gegebenenfalls auch zwei in einer Silikonkautschukschicht eingelagerten Gewebelagen und deren Rollen zu einem hülsenförmigen Rohling kann ein überaus stabiler und auch temperaturfester Schlauch hergestellt werden. Weitere vorteilhafte Merkmale sind den Unteransprüchen zu entnehmen.By using a plate-shaped body with optionally also two embedded in a silicone rubber layer Fabric layers and their rolls to form a sleeve-shaped blank can extremely stable and temperature-resistant hose can be manufactured. Further advantageous features can be found in the subclaims.

Anhand der Zeichnung wird die Erfindung nachstehend beispielhaft näher erläutert:

Figur 1
zeigt schematisch eine Platte aus einem Silikonwerkstoff mit einer Druckträgerschicht aus einem Gewebe zum Wickeln auf einen Hilfsdorn;
Figur 2
zeigt einen fertigen Rohling auf einem konturierten Dorn als schematische Darstellung mit endseitig auf den Rohling aufzusetzenden Muffen.
The invention is explained in more detail below by way of example with reference to the drawing:
Figure 1
shows schematically a plate made of a silicone material with a pressure carrier layer made of a fabric for winding on an auxiliary mandrel;
Figure 2
shows a finished blank on a contoured mandrel as a schematic representation with sleeves to be placed on the end of the blank.

Gemäß Figur 1 stellt sich die Plane 1 aus Silikonkautschuk mit einer inneren Trägerschicht aus einem Gewebe 2 als partiell auf einem ersten Dorn, dem sogenannten Hilfsdorn 20, aufgerollter Rohling 3 dar. Hierbei ist erkennbar, dass die Plane mehrfach übereinander -ähnlich einer Spiralegewickelt ist, so dass mindestens zwei Trägerschichten aus Gewebe 2 übereinander verlaufen. Nachdem der Rohling auf dem Hilfsdorn 20 aufgewickelt ist, wird er vom Hilfdorn entdornt.According to Figure 1, the tarpaulin 1 made of silicone rubber with a inner carrier layer made of a fabric 2 as partially on a first Mandrel, the so-called auxiliary mandrel 20, rolled up blank 3. This is recognizable that the tarpaulin is wrapped several times on top of each other - like a spiral , so that at least two carrier layers made of fabric 2 overlap. After the blank on the auxiliary mandrel 20 is wound, it is removed from the auxiliary mandrel.

Vor der eigentlichen Vulkanisation wird der Rohling auf den entsprechend geformten zweiten Dorn 10 geschoben, wobei dann die Muffen 5 aus Silikongummi aufgeschoben werden, um dann im auf dem zweiten Dorn 10 aufgeschobenen Zustand bandagiert zu werden (Fig. 2). Die Muffen 5 zeigen eine nutartige umlaufende Einprägung 5a zur Aufnahme der Schlauchschelle im eingebauten Zustand eines derartigen Ladeluftschlauches im Motor. Bei der Bandagierung wird ein entsprechend festes und auch temperaturbeständiges Band über die vollständige Länge des Rohlings gewickelt, um bei der Vulkanisation eine innige Verbindung der gewickelten Lagen des Rohlings untereinander zu bewirken und zusätzlich natürlich auch eine innige Verbindung der Muffen 5 aus Silikongummi mit dem Schlauchrohling aus Silikonkautschuk. Durch die Bandagierung werden auch in dem Rohling vorhandene Luftblasen herausgepresst. Nach der Vulkanisation wird die Bandage abgenommen, und der Schlauchrohling ist fertig, wenn er von dem Dorn gezogen worden ist.Before the actual vulcanization, the blank is applied accordingly molded second mandrel 10, then the sleeves 5 from Silicone rubber are pushed on, in order then on the second mandrel 10th deferred condition to be bandaged (Fig. 2). The sleeves 5 show a groove-like circumferential impression 5a for receiving the Hose clamp in the installed state of such Charge air hose in the engine. When bandaging is a corresponding solid and also temperature-resistant tape over the entire length of the blank wrapped to form an intimate connection during vulcanization the coiled layers of the blank to effect each other and in addition, of course, an intimate connection of the sleeves 5 Silicone rubber with the tube blank made of silicone rubber. Through the Bandaging will also result in air bubbles present in the blank pressed out. After vulcanization, the bandage is removed and the tube blank is ready when it is pulled from the mandrel is.

Claims (10)

Schlauch, z. B. ein Ladeluftschlauch, mit einem mindestens eine Gewebelage umfassenden Druckträger, wobei der Druckträger von einem vulkanisierbaren Material umgeben ist, und wobei der Schlauch endseitig eine umlaufende Nut besitzt,
dadurch gekennzeichnet,
dass die Gewebelage (2) von einem silikonhaltigen Material beidseitig ummantelt ist, wobei der Schlauch (3) endseitig jeweils eine vorgeformte Muffe (5) aufweist, wobei die Muffe eine Prägung in Form einer umlaufenden Nut (5a) aufweist.Hose, e.g. B. a charge air hose, with a pressure carrier comprising at least one fabric layer, the pressure carrier being surrounded by a vulcanizable material, and the hose having a circumferential groove at the end,
characterized,
that the fabric layer (2) is covered on both sides by a silicone-containing material, the hose (3) each having a pre-shaped sleeve (5) at the end, the sleeve having an embossment in the form of a circumferential groove (5a). Schlauch, insbesondere Ladeluftschlauch, nach Anspruch 1,
dadurch gekennzeichnet,
dass der Schlauch (3) wandungsinnenseitig eine hautähnliche Sperrschicht aufweist.Hose, in particular charge air hose, according to claim 1,
characterized,
that the hose (3) has a skin-like barrier layer on the inside of the wall. Schlauch, insbesondere Ladeluftschlauch, nach Anspruch 1,
dadurch gekennzeichnet,
dass die Sperrschicht aus Fluorkautschuk oder Fluorkunststoff besteht.Hose, in particular charge air hose, according to claim 1,
characterized,
that the barrier layer is made of fluororubber or fluoroplastic. Schlauch, insbesondere Ladeluftschlauch nach Anspruch 1,
dadurch gekennzeichnet,
dass die Gewebelage (2) durch Aramidfäden verstärkt ist.Hose, in particular charge air hose according to claim 1,
characterized,
that the fabric layer (2) is reinforced by aramid threads. Schlauch, insbesondere Ladeluftschlauch nach Anspruch 1,
dadurch gekennzeichnet,
dass die Muffe (5) aus vernetztem Silikonkautschuk (Silikongummi) besteht. Hose, in particular charge air hose according to claim 1,
characterized,
that the sleeve (5) consists of cross-linked silicone rubber (silicone rubber). Schlauch, insbesondere Ladeluftschlauch nach Anspruch 1,
dadurch gekennzeichnet,
dass das silikonhaltige Material des Schlauchrohlings Silikonkautschuk ist.Hose, in particular charge air hose according to claim 1,
characterized,
that the silicone-containing material of the tube blank is silicone rubber. Verfahren zur Herstellung eines Schlauches, insbesondere eines Ladeluftschlauches mit einem plattenförmigen Grundkörper mit einem Druckträger aus mindestens einer Gewebelage, wobei die Gewebelage beidseitig von einem silikonhaltigen Material (Silikonkautschuk) ummantelt ist, wobei der plattenförmige Grundkörper zur Bildung eines Rohlings auf einen ersten Dorn gerollt wird,
dadurch gekennzeichnet,
dass der Rohling (3) von dem ersten Dorn (20) entdornt wird, dieser Rohling auf einen der Kontur des Schlauches entsprechenden zweiten Dorn (10) geschoben wird, endseitig auf den Rohling (3) jeweils eine vorgefertigte Muffe (5) aus einem Elastomermaterial, z. B. Silikongummi aufgebracht wird, der Rohling (3) auf dem zweiten Dorn (10) bandagiert und daraufhin vulkanisiert wird.Method for producing a hose, in particular a charge air hose with a plate-shaped base body with a pressure carrier made of at least one fabric layer, the fabric layer being covered on both sides by a silicone-containing material (silicone rubber), the plate-shaped base body being rolled onto a first mandrel to form a blank,
characterized,
that the blank (3) is thorned by the first mandrel (20), this blank is pushed onto a second mandrel (10) corresponding to the contour of the hose, a prefabricated sleeve (5) made of an elastomeric material on each end of the blank (3) , e.g. B. silicone rubber is applied, the blank (3) on the second mandrel (10) bandaged and then vulcanized. Verfahren zur Herstellung eines Schlauches, insbesondere eines Ladeluftschlauches, nach Anspruch 7,
dadurch gekennzeichnet,
dass vor dem Rollen des plattenförmigen Grundkörpers auf den ersten Dorn (20), auf den Dorn (20) eine Schicht aus einem Fluorkautschuk aufgebracht wird.Method for producing a hose, in particular a charge air hose, according to claim 7,
characterized,
that a layer of a fluororubber is applied to the first mandrel (20) and the mandrel (20) before the plate-shaped base body rolls. Schlauch, insbesondere Ladeluftschlauch, nach Anspruch 7,
dadurch gekennzeichnet,
dass der Rohling (3) über seine gesamte Länge einschließlich der aufgesetzten Muffen (5) bandagiert wird. Hose, in particular charge air hose, according to claim 7,
characterized,
that the blank (3) is bandaged over its entire length, including the fitted sleeves (5). Schlauch, insbesondere Ladeluftschlauch, nach Anspruch 7,
dadurch gekennzeichnet,
dass der Rohling (3) auf dem ersten Dorn (20) vorvulkanisiert wird.Hose, in particular charge air hose, according to claim 7,
characterized,
that the blank (3) is pre-vulcanized on the first mandrel (20).
EP99122642A 1998-12-22 1999-11-13 Hose, for example for supply of air Expired - Lifetime EP1013979B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19859374 1998-12-22
DE19859374 1998-12-22
DE19907325A DE19907325C2 (en) 1998-12-22 1999-02-20 Hose, e.g. B. a charge air hose, and method for its production
DE19905325 1999-02-20

Publications (3)

Publication Number Publication Date
EP1013979A2 true EP1013979A2 (en) 2000-06-28
EP1013979A3 EP1013979A3 (en) 2002-07-03
EP1013979B1 EP1013979B1 (en) 2003-11-26

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ID=26050951

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ES (1) ES2210948T3 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005093308A3 (en) * 2004-03-05 2007-01-18 Veritas Ag Flexible hose, in particular a charge air hose
WO2008058732A3 (en) * 2006-11-17 2008-07-03 Elringklinger Ag Tubular molded part
DE102008055480A1 (en) 2008-02-15 2009-08-20 Contitech Mgw Gmbh Flexible hose for high pressures and temperatures, in particular charge air or cooling water hose
EP2690335A1 (en) * 2012-07-26 2014-01-29 Ralph-Günther Matzen Flexible, hose-shaped moulded body, such as bellows, and method for its manufacture
EP2764992A1 (en) * 2013-02-08 2014-08-13 ContiTech MGW GmbH Flexible hose

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DE963101C (en) 1952-05-16 1957-05-02 Dow Corning Process for the production of gas-tight, multilayer pipes and hoses
DE4422557C1 (en) 1994-06-28 1996-01-04 Daimler Benz Ag Integrated tank sealing cap
EP0826915A2 (en) 1996-08-30 1998-03-04 Mündener Gummiwerk GmbH Fuel hose and process for its manufacture
DE19749332C1 (en) 1997-11-07 1999-04-08 Muendener Gummiwerk Gmbh Vulcanizing and shaping equipment for elastomeric hose, especially rubber hose

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DE963101C (en) 1952-05-16 1957-05-02 Dow Corning Process for the production of gas-tight, multilayer pipes and hoses
DE4422557C1 (en) 1994-06-28 1996-01-04 Daimler Benz Ag Integrated tank sealing cap
EP0826915A2 (en) 1996-08-30 1998-03-04 Mündener Gummiwerk GmbH Fuel hose and process for its manufacture
DE19749332C1 (en) 1997-11-07 1999-04-08 Muendener Gummiwerk Gmbh Vulcanizing and shaping equipment for elastomeric hose, especially rubber hose

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005093308A3 (en) * 2004-03-05 2007-01-18 Veritas Ag Flexible hose, in particular a charge air hose
WO2008058732A3 (en) * 2006-11-17 2008-07-03 Elringklinger Ag Tubular molded part
DE102008055480A1 (en) 2008-02-15 2009-08-20 Contitech Mgw Gmbh Flexible hose for high pressures and temperatures, in particular charge air or cooling water hose
US8997795B2 (en) 2008-02-15 2015-04-07 Contitech Mgw Gmbh Flexible hose for high pressures and temperatures including a charge-air hose and a cooling-water hose
EP2690335A1 (en) * 2012-07-26 2014-01-29 Ralph-Günther Matzen Flexible, hose-shaped moulded body, such as bellows, and method for its manufacture
US9188091B2 (en) 2012-07-26 2015-11-17 Ralph-Guenther Matzen Flexible tubular molded body, such as bellows, and method for the manufacture thereof
EP2764992A1 (en) * 2013-02-08 2014-08-13 ContiTech MGW GmbH Flexible hose
WO2014121876A1 (en) * 2013-02-08 2014-08-14 Contitech Mgw Gmbh Flexible hose

Also Published As

Publication number Publication date
EP1013979B1 (en) 2003-11-26
EP1013979A3 (en) 2002-07-03
ES2210948T3 (en) 2004-07-01

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